Fort Thompson Headquarters
Main Headquarters Serving the central South Dakota area.
Yankton Facility
Yankton, SD Facility serving South East South Dakota, Nebraska, and Iowa areas
Contact CORE Engineering & Consulting Inc.
Fort Thompson Office
22700 Bad Nation Road
PO Box 654
Fort Thompson, SD 57339
Yankton Office
3402 E SD Hwy 50
Yankton, SD 57078
Phone: (605)260-4908
Fax: (605)260-4908